{"product_id":"mercedes-thermostat-mit-gehause-92-c-a6462000015-w203-w211-w220-om646-om648-cdi","title":"Mercedes thermostat with housing 92 °C A6462000015 W203 W211 W220 OM646 OM648 CDI","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eThermostat with housing (opening temperature 92 °C) for Mercedes W203, W211 and W220 with the inline engines OM646, OM647 and OM648 (CDI), OE number A 646 200 00 15.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eNOS – unused in the original box  ·  Fits OM646 \/ OM647 \/ OM648 CDI  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eOpening temperature 92 °C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eNOS (New Old Stock) in the original Calorstat box, unused. The housing has no corrosion or scratches, the sealing ring is unused. The box has slightly knocked edges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eFunction and location\u003c\/h3\u003e\n\u003cp\u003eThe thermostat regulates coolant flow between the small and large circuits. It stays closed up to the opening temperature so the engine warms up quickly; from 92 degrees it opens the path to the radiator. The aluminium housing also acts as a hose manifold and houses the coolant temperature sensor.\u003c\/p\u003e\n\u003cp\u003eThe housing is installed at the front of the engine, flange-bolted to the coolant pump and timing case with four screws. The radiator hoses attach to the two large spigots, and the bleed line attaches to the thin nipple.\u003c\/p\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eHow can you tell if the thermostat is defective?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe engine overheats because the circuit to the radiator is not opened in time (thermostat stuck closed)\u003c\/li\u003e\n\u003cli\u003eThe engine takes unusually long to warm up because the large circuit opens too early (thermostat stuck open)\u003c\/li\u003e\n\u003cli\u003eThe cabin heating stays cool because the coolant does not reach operating temperature\u003c\/li\u003e\n\u003cli\u003eThe coolant temperature sensor in the housing shows unusual or fluctuating readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003ePart numbers\u003c\/h3\u003e\n\u003cp\u003eOE number A 646 200 00 15, housing stamp V.2890-92. To be distinguished from the externally almost identical 87-degree version TH6847.87J, which belongs to a different number family.\u003c\/p\u003e\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e⚠ Important: compare the part number before buying\u003c\/p\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003eThe opening temperature is decisive: please compare the stamped temperature of the old thermostat, or the OE number, exactly with this part. For six-cylinder applications, also check the OE number, as from 2005 the V6 engine OM642 was fitted with a different thermostat.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:700;\"\u003eDoes not fit:\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003eVersion with 87-degree opening temperature, number TH6847.87J (among others Sprinter, Vito, Viano, Jeep Grand Cherokee 2.7 CRD)\u003c\/li\u003e\n\u003cli\u003eOM651 – the thermostat module is integrated there\u003c\/li\u003e\n\u003cli\u003eV6 engine OM642 (3.0-litre CDI)\u003c\/li\u003e\n\u003cli\u003eInsert thermostats without housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e0179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eHow does this thermostat differ from the 87-degree version?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eIn the opening temperature and the number family: this part opens at 92 degrees (housing stamp V.2890-92, OE number A 646 200 00 15). The 87-degree version TH6847.87J belongs to a different number family and is fitted, among others, in the Sprinter, Vito, Viano and the Jeep Grand Cherokee 2.7 CRD.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eDoes the thermostat also fit the V6 engine OM642?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The OM642 (3.0-litre CDI) uses a different thermostat, as does the OM651 with its integrated thermostat module. This part is exclusively for the inline engines OM646, OM647 and OM648.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eWhat condition is the part in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNOS in the original Calorstat box, unused, housing without corrosion or scratches, sealing ring unused. The box itself has slightly knocked edges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/heizung-klima\"\u003eHeating \u0026amp; A\/C\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":54984556052809,"sku":"90128","price":44.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_dabb6e74-e9f7-48d3-b5b2-b13a3b78e36b.jpg?v=1787304459","url":"https:\/\/kfzteile-thot.de\/en\/products\/mercedes-thermostat-mit-gehause-92-c-a6462000015-w203-w211-w220-om646-om648-cdi","provider":"KFZTeile-Thot","version":"1.0","type":"link"}